Carbon Steel Stop Block：This Ruler Positioning Block serves as a Ruler Stops Fences made from Carbon Steel Ruler Positioning Block material, sliding along ruler edges to create repeatable measurement limits for workshop layouts or board cutting stations Adjustable Limit Setting：Use this Ruler Positioning Block as an Adjustable Rulers Limit Block that clamps onto any straight ruler Engineering Measurement Aid：This Ruler Positioning Block functions as a Ruler Block for Measurement in Engineering tasks, where the stop fence registers against workpiece edges Woodworking Repeat Cuts：As a woodworking ruler positioning block, this Ruler Positioning Block attaches to combination squares or bench rulers, allowing repeated identical measurements for dado placement or hinge mortise layouts across multiple cabinet parts Line Marking Fence：This Ruler Stop Fence Tool for Line Marking Use has a low-profile design on this Ruler Positioning Block, clearing pencil tips or marking knives while the Carbon Steel Ruler Positioning Block holds position against the ruler face during scribing, Manufacturer: YGLEEULI